Improved power quality bridgeless Cuk converter fed brushless DC motor drive for air conditioning system. Issue 5 (1st May 2013)

• Record Type: Journal Article
• Authors: Singh, Bhim; Bist, Vashist
• Is Part Of: IET power electronics. Volume 6:Issue 5(2013)
• Page Start: 902
• Page End: 913
• Publication Date: 2013-05-01
• Subjects: air conditioning -- angular velocity control -- brushless DC motors -- DC motor drives -- power convertors -- power factor correction -- power supply quality -- voltage control; power quality bridgeless Cuk converter fed brushless DC motor drive -- air conditioning system -- BLDC motor drive -- speed control approach -- DC bus -- single voltage sensor -- DICM -- discontinuous inductor current mode -- power factor correction -- PFC -- PQ -- voltage follower approach -- voltage control -- low conduction losses -- bridgeless converter topology -- heat sink -- switches -- near unity power factor; air conditioning -- angular velocity control -- brushless DC motors -- DC motor drives -- power convertors -- power factor correction -- power supply quality -- voltage control; power quality bridgeless Cuk converter fed brushless DC motor drive -- air conditioning system -- BLDC motor drive -- speed control approach -- DC bus -- single voltage sensor -- DICM -- discontinuous inductor current mode -- power factor correction -- PFC -- PQ -- voltage follower approach -- voltage control -- low conduction losses -- bridgeless converter topology -- heat sink -- switches -- near unity power factor; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2013.0050
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : This study presents a bridgeless Cuk converter‐fed brushless DC (BLDC) motor drive for an air conditioning system. A new approach of speed control of BLDC motor is proposed by controlling the voltage at DC bus using a single voltage sensor. The proposed drive utilises a bridgeless Cuk converter operating in discontinuous inductor current mode (DICM) for the power factor correction (PFC) and improved power quality (PQ) at the AC mains for a wide range of speed control. The bridgeless Cuk converter operating in a DICM gives an inherent PFC and requires a simple voltage follower approach for the voltage control. The bridgeless converter topology is designed for obtaining the low conduction losses and requirement of low size of heat sink for the switches. The proposed system is designed and its performance is simulated for an air conditioning system to operate over a wide range of speed control with near unity power factor at AC mains. Finally, the performance of the proposed drive obtained in simulation is validated with test results on a developed drive for its operation over a wide range of speed control with improved PQ at AC mains.